KR0140960B1 - Automatic tv channel selecting device for viewing vcr programs - Google Patents

Abstract

The present invention relates to an apparatus for automatically switching a TV receiver to a VCR viewing channel (usually channel 3 or channel 4) set in a TV receiver or a line input mode. The present invention relates to an apparatus for automatically converting an input mode of a TV receiver to a video-viewable line and a channel by inserting a key into the video receiver or by inputting a play key command (remote control or manual key input).

Conventionally, in order to watch a VCR, channel 3 or channel 4 is set as a video viewing channel among TV channels, and whenever a user wants to watch a VCR, the user operates a VCR remote control to input a playback command and the TV channel currently being watched. It is inconvenient because you can watch on the channel only when you change the broadcasting channel to channel 3 or channel 4 using the TV remote control.

The present invention provides playback detection means for detecting whether or not the current video playback is to be executed, and a channel number for data set by the user and TV channel switching data (command) for switching TV channels to the channel. Memory means for storing, control means for outputting a corresponding channel switching command so as to be switched to a channel stored in the memory means when a playback command is detected by the playback detecting means, and channel switching output from the control means; A VCR automatic switching device of VCR composed of command output means for sending a command to a TV and converting a TV channel into a video viewable channel. Can be switched to VCR / TV operation by automatically switching to the video-viewable input mode and channel and executing playback.

Description

VCR's Automatic TV Channel Switching System

1 is a block diagram of an apparatus for automatically switching channels according to a first embodiment of the present invention.

2 is a block diagram of a channel automatic switching device according to a second embodiment of the present invention.

3 is a flowchart showing the operation of the second embodiment of the present invention.

4 is a block diagram of a channel automatic switching device of a third embodiment of the present invention.

5 is a flowchart showing an operation process of the third embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

1: remote control transmitting means 2: remote control receiving means

3: main micom 4: sub micom

5: channel switching remote control transmission means 6: TV receiver

7: Playback detection and decoding section 8: Memory

9: first central processing unit 10: second central processing unit

11 decoder 12 sync signal detecting means

The present invention relates to an apparatus for automatically converting a TV receiver channel to a VCR viewing dedicated channel (usually channel 3 or channel 4) set in a TV receiver, and inserting a video tape into a VCR deck or playing a key. The present invention relates to a device that automatically converts a TV channel into a video-viewable channel by inputting a command (remote control or manual key input).

Also, when the TV receiver and the VCR are connected in a line so that the TV receiver can be used as a video display monitor, the present invention inserts a video tape into the VCR deck or inputs a play key command. The present invention relates to a device that automatically converts a TV receiver to a line input so as to easily watch a V-Cal image without losing an image signal due to conversion to an RF signal.

Conventionally, in order to watch a VCR, channel 3 or channel 4 is set as a video watching channel among the TV channels, and whenever a user wants to watch a VCR, the user inputs a playback command by operating the VCR remote control and the currently watching TV channel (broadcasting). Channel must be switched to channel 3 or channel 4 using a TV remote control in order to watch videos on that channel.

In other words, the user can watch the video only after changing the TV channel to the viewable channel assigned to the VCR channel, which is inconvenient to operate the VCR and more than two users have to operate the remote control. In the case of the TV / VCR integrated remote controller, the above inconvenience is fundamentally not solved because channel change and input of a play command are accompanied.

According to the present invention, it is convenient to operate the VCR / TV by automatically switching the TV reception channel to the TV channel set as the video viewing channel by executing the playback command by increasing the video playback key and executing the playback. By switching channels, the inconvenience of manipulating multiple remote control keys and remote control keys can be fundamentally eliminated and VCR can automatically switch to a TV channel capable of operating the device. It is an object to provide a device.

In addition, the present invention is to switch the TV receiver to the line input once in case the VCR and the TV receiver is connected to the line by increasing the video play key and inputting only the play command, and in this state, it is determined whether or not the video synchronization signal is synchronized. If there is a signal, the line input switching status is maintained. If there is no synchronization signal, the TV channel set as a video-viewable channel is automatically switched to the TV reception channel and playback is performed. TV receiver can be switched to fundamentally eliminate the inconvenience of operating multiple remote control keys and multiple remote control keys, thereby improving the ease of operation of the VCR (Viewable TV channels) An object of the present invention is to provide an automatic switching device.

In order to achieve the above object, the VCR (VCR) automatically switchable TV channel apparatus of the present invention is capable of watching playback video set by the user and playback detection means for detecting whether or not the current video playback should be executed. Storage means for storing TV channel switching data (command) capable of switching TV channels to the channel number and the channel, and when a playback command is detected by the playback detecting means, the channel can be switched to the channel stored in the storage means. And control means for outputting the corresponding channel change command, and command output means for transmitting the channel change command output from the control means to the TV to convert the TV channel into a video viewable channel.

In addition, the apparatus for automatically switching a TV (VCR) capable of watching TV (VCR) of the present invention includes a synchronization signal detecting means for detecting the presence or absence of a video synchronization signal input from the TV receiver to the VCR and supplying it to the control means.

In the apparatus for automatically watching TV channels of the present invention VCR having the above-described configuration, channel automatic switching is performed as follows.

First, if channel 3 is set as a video viewing channel by the user using a video remote control in advance, this information is stored in the storage means, and the storage means has a command to switch the TV channel to channel 3 (a channel change command recognized by the TV). Is stored.

Information on a video viewable channel such as channel 4 is also the same as above.

In addition, the playback detecting means detects whether or not the current user wants to play the video. For example, when the user inputs a playback command by pressing the play key with the video remote controller, the playback detecting means determines that the video playback should be performed. will be.

In such a situation, when the user is watching the broadcast of channel 6, the user inserts a video tape into the deck and inputs a playback command by means of a remote controller or the like.

Accordingly, the control means determines the viewable channel stored in the storage means. In this case, since the channel 3 is set as the viewable channel, the control means reads the channel switching command of the channel 3 and supplies it to the command output means.

The command output means provides the TV with a command to switch to the input channel 3, for example, a command having the same code as the remote control command provided to the TV remote control receiving circuit when the channel change command key (CH 3 KEY) of the TV remote control is increased. Is modulated into an infrared signal and provided to the TV.

The TV receiver receiving this command recognizes a command to switch the broadcast channel to channel 3, and therefore, of course converts the current broadcast channel 6 to channel 3.

Therefore, playback and switching to channel 3 are executed in one playback command.

On the other hand, in the embodiment of the present invention as described above, when the VCR is turned on, when the VCR is turned on, the control means sends a power-on command to the TV receiver, and then switches the TV receiver to the line input and the TV in the line input state. If a sync signal is detected from the receiver to the VCR, the line input state is maintained and playback is performed. If no sync signal is input, it is regarded as an RF connection state. Perform a switch to the channel.

The apparatus for automatically switching a viewable TV channel of VCR according to the present invention will be described with reference to the embodiments of FIGS. 1 and 2.

1 is a first embodiment of the present invention, which uses a remote control transmission means 1 for inputting the reproduction command and the reproduction detection means for detecting the reproduction command comprises a remote control receiving means 2 and the control means is a main microcomputer. (3) and the sub-microcom (4), and the command output means is a remote control transmitter (5) capable of transmitting a channel switching command to the remote control receiver circuit of the TV receiver (6).

Here, the main microcomputer 3 includes a storage means, and when a playback command is detected by the remote control receiver 2, it is inputted to determine a video viewable channel in the storage means and the sub-microcom 4 switches to the channel. The sub-microcom 4 receives the video viewable channel switching command and converts it into an infrared code and inputs it to the remote control transmission means 5, and the remote control transmission means 5 converts the channel switching command into an infrared signal. To the remote control receiver circuit of the TV receiver 6.

Therefore, as if the channel switching command is received by the TV remote control which has received the channel switching command, the channel is switched to the channel corresponding to the command provided by the remote control transmitter 5.

2 is a second embodiment of the VCR automatic viewable TV channel switching device of the present invention, wherein the playback detecting means is provided with a tape detection switch SW1 and a key panel on which a video tape is inserted into a deck. It comprises a reproducing key switch SW2 for recognizing a reproducing key command, and the remote control receiving means 2 is also included in the reproducing detecting means.

In addition, a channel detection switch SW3 for detecting which channel the modulator output is set in order to recognize the set video viewing channel information is provided, and the main channel 3 detects the setting channel information detected by the channel detection switch SW3. Makes this recognizable,

The control means includes a main micom 3 and a sub micom 4, wherein the main micom 3 detects whether each of the sensing switches SW1, SW2, and SW3 is on or off, thereby performing a first central processing. A playback detection and decoding unit 7 and a switch command to a video-viewable channel are stored, which are input to the device 9 and decoded by the remote control receiving means 2 to be input to the first central processing unit 9. A first center is used to determine whether to execute playback and channel switching by using the signals input from the memory 8 and the reproduction detection and decoding unit 7, and to output a channel switching command stored in the memory 8 during channel switching. It consists of the processing apparatus 9.

In addition, the sub-microcom 4 processes the channel switching command received from the first CPU 9 and supplies the decoder 11 to the second CPU 10 and the second CPU 10. And a decoder 11 for converting the channel switching command outputted from the TV into a TV remote control code and supplying it to the remote control transmitter 5.

The automatic channel switching operation by the VCR of the present invention configured as described above with reference to the flowchart showing the second and third degree of operation will be described as follows. do.

First, the user inputs a playback command to the VCR using the remote control transmission means 1, or turns on the playback key SW2 on the key panel to enter a playback command, or inserts a video tape into the deck to detect the tape detection switch SW1. When turned off, the detection and decoding unit 7 detects and decodes a playback command or a tape detection signal and inputs it to the first central processing unit 9,

When the reproduction detection signal is input, the first central processing unit 9 retrieves the detection result of the channel detection switch SW3 through the detection and decoding unit 7, and the channel detection switch SW3 is a channel for which the VCR is currently available for video viewing. For example, as a switch for detecting which channel the modulator output is set to, among the channel 3 or the channel 4, the moder output channel is recognized from the switch SW3.

From this recognition result, the video channel set by the user is determined, and the channel switching command (data) to the determined channel is read from the memory 8 and supplied to the second central processing unit 10.

The second central processing unit 10 supplies the input channel switching command to the decoder 11, and the decoder 11 converts the input channel switching command into a channel switching code of the same code as the channel key data in the TV remote control. The remote control transmission means 5 is driven by the converted code.

Accordingly, the remote control transmission means 5 outputs infrared channel key data (switch command to the video channel), and this infrared signal is received by the remote control receiving circuit in the TV receiver 6 to convert the TV channel by the microcomputer in the TV. Will be converted to.

Figure 4 shows the circuit configuration of the third embodiment of the VCR (automatic TV channel automatic switching device) of the present invention.

As shown in FIG. 4, the TV receiver 6 and the VCR 13 are connected by an RF cable 14 or a line 15, 16, and are connected from the video output terminal (V / OUT) of the TV receiver 6. Synchronization signal detection means 12 for detecting the registration signal of the video signal coming into the video input terminal (V / IN) of the VCR through the line 16, and outputs the output of the synchronization signal detection means 12 to the main microcomputer. It is the structure connected so as to supply to (3).

The operation of this embodiment will be described with reference to the flowchart of FIG. 4 and FIG. 5 as follows.

When the power of the VCR 13 is turned on, the control means sends a power-on command to the TV receiver 6 from the microcomputer 3 and 4 via the remote control transmitter 5 and receives the command. The power is turned on.

As described above, when a play command (or a play detection signal) is inputted to the main micom 3, the input of the TV receiver 6 from the remote controller transmission means 5 through the sub micom 4 in the main micom 3 ( RF / LINE) outputs the line conversion command first.

Accordingly, the TV receiver 6 switches to the line input mode, and if the VCR 13 and the TV receiver 6 are connected to the lines 15 and 16, the video signal reproduced by the VCR 13 is the video output terminal. It is input to the video input terminal (V / IN) of the TV receiver 6 through (V / OUT) and the line 15 and is output on the screen, and the video signal output at this time is again the video output terminal ( V / OUT) and the line 16 will be input to the video input terminal (V / IN) of the VCR (13).

Therefore, at this time, the video signal is detected by the synchronization signal detecting means 12 and the result of the synchronization signal detection is input to the main microcomputer 3.

When the synchronization signal is detected, the main microcomputer 3 maintains the current line switching state so that the video signal reproduced by the VCR 13 is supplied to the line input terminal of the TV receiver 6.

However, when the TV receiver 6 and the VCR 13 are connected with the RF cable 14 and are not connected in line, the video signal is not transmitted. Therefore, the synchronization signal is detected by the synchronization signal detecting means 12. Will not be detected.

Therefore, at this time, the main microcomputer 3 transmits a switching command to the channel (channel 3 or channel 4) which has been stored in advance as described above via the submicrocom 4 to the TV receiver 6 through the remote control transmitter 5. And the TV receiver 6 is switched to the corresponding channel to the RF output terminal (RF / OUT) cable 14 of the VCR 13 to the RF input terminal RF / IN of the TV receiver 6. The playback video signal is input and output to the screen.

When the video signal is output to the TV receiver 6 in this way, the output video signal is again output through the video output terminal V / OUT of the TV receiver and the video input terminal V of the VCR 13 through the line 16. / IN).

Therefore, at this time, the synchronization signal detection means 12 detects the synchronization signal of the video signal, and the synchronization signal detection result is input to the main microcomputer 3.

The main microcomputer 3 in which the synchronization signal is detected maintains the current RF switching state so that the video signal reproduced by the VCR 13 is supplied to the RF input terminal of the TV receiver 6.

However, in spite of such switching control, if the synchronization signal is not detected by the synchronization signal detecting means 12, the connection status confirmation message is regarded as OSD connection failure between the TV receiver 6 and the VCR 13, and the OSD processing is terminated.

As described above, the present invention operates the VCR in a playback mode when a video tape playback command or a playback command by video tape insertion is detected, and at this time, a user can set a video viewing channel (channel 3, channel 3). 4) It automatically switches to VCR key operation, and it is convenient to operate VCR key, and play and channel switching are performed at the same time with one command, so it is inconvenient to operate video remote control or TV remote control separately. There is an effect that can solve the inconvenience of having to operate each channel key.

In addition, the present invention operates the VCR in the playback mode when a video tape playback command or a video tape insertion command is detected, and at this time, controls the TV receiver to switch to the line input mode to detect whether a video signal is transmitted or not. It determines whether or not, and adheres to the line input mode or automatically switches the TV channel to the video viewing channel (channel 3, channel 4) set by the user according to the determination result, so that it is convenient to operate the VCR key. It is inconvenient to operate video remote control or TV remote control separately because playback and video input mode (RF / LINE) switching of TV receiver are done at the same time with one command, and playback key and channel key of each remote control must be operated separately. There is an effect that can resolve the inconvenience.

Claims (6)

Playback command key of the video remote control or tape detection switch that detects whether a video tape is inserted, or a channel detection switch that detects which channel the modulator output is set among VCR-viewable channels. Storage means for storing the VCR viewable channel data, and a reception channel of a TV that is connected to the VCR viewable channel data stored in the storage means when the playback instruction is detected by the playback detection means. Control means for outputting a control signal to be changed to a specific channel, and command output means for sending a channel switching command corresponding to the control signal to the TV. (TV) channel automatic switching device. 2. A synchronization signal detecting means (12) according to claim 1, further comprising a synchronization signal detecting means (12) for detecting a synchronization signal of a video signal output from a TV receiver on the VCR side and inputting a presence or absence of a round signal to a control means. And the control means automatically switches the input mode of the TV receiver to the line input mode according to the synchronization signal detection result. The main control apparatus according to claim 1 or 2, wherein the control means includes a storage means, and when a play command is detected, the control means receives the play command, determines a video available channel in the storage means, and outputs a switch command to the channel. A microcomputer 3 and a sub-microcom 4 that receives a channel switching command output from the main microcomputer 3 and converts it into a channel charge code of a TV and supplies the same to a TV receiver 6 through a command output means. An automatic viewable TV channel switching device of VCR. 3. The control unit according to claim 2, wherein said control means sends a switching command to a channel stored in the storage means if the synchronization signal is not detected by said synchronization signal detecting means 12 even after switching to the TV receiver in the line input mode. An apparatus for automatically switching a TV channel of a TV (VCR), characterized in that the TV receiver is controlled by an RF input mode by transmitting. 10. The apparatus according to claim 9, wherein the main microcomputer (3) decodes the reproduction command detection signal and inputs the reproduction command detection signal to the first central processing unit (9), and a command to switch to a video-viewable channel. The stored memory 8 and the signal input from the reproduction detecting decoding unit 7 are used to determine whether to perform reproduction and channel switching, and to output a channel switching command stored in the memory 8 at the time of channel switching. And a second central processing unit (10) configured to process the channel switching command output from the main microcomputer (3) and to supply the decoder (11) to the decoder (11). And a decoder 11 for converting the channel change command output from the second CPU 10 into a channel change code of the TV and outputting the same to the TV receiver through the command output means. Watchable TV Channels at Copper switching device. The VCR according to claim 1 or 2, wherein the command outputting means is remote control transmitting means (5) for outputting a channel switching command output from the control means as a remote control channel key code signal of a TV. Watchable TV channel automatic switching device.